<!--
 * @Description: 用户注册组件
 * @Author: hai-27
 * @Date: 2020-02-19 22:20:35
 * @LastEditors: hai-27
 * @LastEditTime: 2020-03-01 15:34:34
 -->
<template>
  <div id="register">
    <el-dialog title="注册" width="300px" center :visible.sync="isRegister">
      <el-form
        :model="RegisterUser"
        status-icon
        :rules="rules"
        ref="ruleForm"
        class="demo-ruleForm"
      >
        <el-form-item prop="name">
          <el-input
            prefix-icon="el-icon-user-solid"
            placeholder="请输入账号"
            v-model="RegisterUser.name"
          ></el-input>
        </el-form-item>
        <el-form-item prop="email">
          <el-input
                  prefix-icon="el-icon-message"
                  placeholder="请输入邮箱"
                  v-model="RegisterUser.email"
          ></el-input>
        </el-form-item>
        <el-form-item prop="pass">
          <el-input
            prefix-icon="el-icon-view"
            type="password"
            placeholder="请输入密码"
            v-model="RegisterUser.pass"
          ></el-input>
        </el-form-item>
        <el-form-item prop="confirmPass">
          <el-input
            prefix-icon="el-icon-view"
            type="password"
            placeholder="请再次输入密码"
            v-model="RegisterUser.confirmPass"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button size="medium" type="primary" @click="Register" style="width:100%;">注册</el-button>
        </el-form-item>
      </el-form>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: "MyRegister",
  props: ["register"],
  data() {
    // 用户名的校验方法
    let validateName = (rule, value, callback) => {
      if (!value) {
        return callback(new Error("请输入用户名"));
      }
      // 用户名以字母开头,长度在5-16之间,允许字母数字下划线
      const userNameRule = /^[a-zA-Z][a-zA-Z0-9_]{4,15}$/;
     /* return userNameRule.test(value);*/
      console.log(userNameRule.test(value))
      if (userNameRule.test(value)) {
        //判断数据库中是否已经存在该用户名
        this.$axios
          .post("/api/users/findUserName", {
             username: this.RegisterUser.name
          })
          .then(res => {
            console.log(res)
            // “200”代表用户名不存在，可以注册
            if (res.data.code === 200) {
              this.$refs.ruleForm.validateField("checkPass");
              return callback();
            } else {
              return callback(new Error(res.data.msg));
            }
          })
          .catch(err => {
            return Promise.reject(err);
          })
      } else {
        return callback(new Error("字母开头,长度5-16之间,允许字母数字下划线"));
      }
    };
    //邮箱校验
    let validateEmail = (rule, value, callback) =>{
      if (!value) {
        return callback(new Error("请输入邮箱地址"));
      }
      const emailRule = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
      if(emailRule.test(value)){
        this.$refs.ruleForm.validateField("checkPass");
        return callback();
      }else {
        return callback(
                new Error("邮箱格式错误")
        );
      }

    };
    // 密码的校验方法
    let validatePass = (rule, value, callback) => {
      if (value === "") {
        return callback(new Error("请输入密码"));
      }
      // 密码以字母开头,长度在6-18之间,允许字母数字和下划线
      const passwordRule = /^[a-zA-Z]\w{5,17}$/;
      if (passwordRule.test(value)) {
        this.$refs.ruleForm.validateField("checkPass");
        return callback();
      } else {
        return callback(
          new Error("字母开头,长度6-18之间,允许字母数字和下划线")
        );
      }
    };
    // 确认密码的校验方法
    let validateConfirmPass = (rule, value, callback) => {
      if (value === "") {
        return callback(new Error("请输入确认密码"));
      }
      // 校验是否以密码一致
      if (this.RegisterUser.pass !== "" && value === this.RegisterUser.pass) {
        this.$refs.ruleForm.validateField("checkPass");
        return callback();
      } else {
        return callback(new Error("两次输入的密码不一致"));
      }
    };
    return {
      isRegister: false, // 控制注册组件是否显示
      RegisterUser: {
        email: "",
        name: "",
        pass: "",
        confirmPass: ""
      },
      registerParam: {
        email: "",
        username: "",
        password: ""
      },
      // 用户信息校验规则,validator(校验方法),trigger(触发方式),blur为在组件 Input 失去焦点时触发
      rules: {
        name: [{ validator: validateName, trigger: "blur" }],
        email: [{validator: validateEmail, trigger: "blur"}],
        pass: [{ validator: validatePass, trigger: "blur" }],
        confirmPass: [{ validator: validateConfirmPass, trigger: "blur" }]
      }
    };
  },
  watch: {
    // 监听父组件传过来的register变量，设置this.isRegister的值
    register: function(val) {
      if (val) {
        this.isRegister = val;
      }
    },
    // 监听this.isRegister变量的值，更新父组件register变量的值
    isRegister: function(val) {
      if (!val) {
        this.$refs["ruleForm"].resetFields();
        this.$emit("fromChild", val);
      }
    }
  },
  methods: {
    Register() {
      // 通过element自定义表单校验规则，校验用户输入的用户信息
      this.$refs["ruleForm"].validate(valid => {
        //如果通过校验开始注册
        if (valid) {
          this.setParam();
          this.$axios({
            method: 'post',
            url: "/api/users/register",
            data: this.registerParam
          }).then(res=>{
            // “200”代表注册成功，其他的均为失败
            if (res.data.code === 200) {
              // 隐藏注册组件
              this.isRegister = false;
              // 弹出通知框提示注册成功信息
              this.notifySucceed(res.data.msg);
            } else {
              // 弹出通知框提示注册失败信息
              this.notifyError(res.data.msg);
            }
          }).catch(
                  err => {
                    return Promise.reject(err);
                  }
          );
        } else {
          return false;
        }
      });
    },
    setParam() {
      this.registerParam.email = this.RegisterUser.email;
      this.registerParam.username = this.RegisterUser.name;
      this.registerParam.password = this.RegisterUser.pass;
    }
  }
};
</script>
<style>
</style>